He has some doubt ________ he will succeed in his research work.
A. whether B. weather C. which D. that
_________ is known to all, the moon travels round the earth once every month.
A. It B. As C. That D. What
Sorry, I am late. I ______ have turn off the alarm clock and gone back to sleep again.
A.might B. should C. need D. would
___________ was most important to her, she told me, was her family.
A.It B. This C. What D. As
The man _______ the little boy and said , “You are so clever and lovely . I love you very much.”
A. glared at B. aimed at C. stared at D. laughed at
________ work has been done to improve the people’s living standard.
A. A large amount of B. A large number of C. A great deal D. A great many
